1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jlenok [28]
3 years ago
10

How are bacteria able to regulate their genes by two types of operons?

Biology
1 answer:
Aleks04 [339]3 years ago
5 0

Operons are the functional units of transcription and genetic regulation. These are found in bacteria and their viruses where genes coding for functionally related proteins are grouped along the DNA.

The two types of operons are- inducible and repressible.

They regulate the genes as in negative inducible operons, a regulatory repressor protein is bound to the operator. It prevents the transcription of the genes on the operon. If positive inducer is present, it binds to the repressor and changes its conformation so it is unable to bind to the operator.


You might be interested in
A planet has a period of revolution about the Sun equal to T and a mean distance from the Sun equal to R. T2 varies directly as
Zolol [24]
<span> R^3 SO IT SHOULD BE C</span>
7 0
4 years ago
Read 2 more answers
1.
Paladinen [302]

1. The right answer is cellular respiration.

Cellular respiration allows the production of ATP through the breakdown of glucose assisted by oxygen. We talk about aerobic metabolism. This metabolism is to oppose the fermentation which is done without oxygen (anaerobic) and that we detail in another file. Cellular respiration is divided into two phases, one cytoplasmic and the other mitochondrial.


2. The right answer is Chloroplasts transform light energy into chemical energy.

Chloroplasts convert solar energy into chemical energy, which are carbohydrates.

Chloroplasts (or plastids) are present in all plant cells (with the exception of some unicellular species that lack them). Located in the cytoplasm of the cell, containing chlorophyll and providing photosynthesis.


3. The right answer is It is constructed by connecting smaller monomer subunits.

Cellulose is a linear homopolymer composed of very numerous units of D-Anhydroglucopyranose (AGU) interconnected by β- (1 → 4) glycosidic linkages. The repetition pattern is the cellobiose dimer. The AGUs are in chair conformation and have 3 hydroxyl functions: 2 secondary alcohols (in position 2 and 3) and a primary alcohol (in position 6). These hydroxyl functions, as well as the glycoside bonds, are in equatorial position with respect to the plane of the cycle, which therefore causes the hydrogens of the ring to be in the axial position.

The degree of polymerization differs enormously depending on the origin of the cellulose; its value can vary from a few hundred to a few tens of thousands.


4. The right answer is Chloroplasts convert light energy into chemical energy that can be used by mitochondria.

Mitochondria and chloroplasts are organelles (organ-like cell elements) of the cytoplasm with a double membrane (inner membrane and outer membrane) and multiply as bacteria by division or budding.

Mitochondria are present in animal and plant cells, they allow the synthesis of proteins and are between 0.5 microns to 7 microns; chloroplasts are characteristic of plant cells, they capture sunlight and are the source of photosynthesis.


5. The right answer is homeostasis.

Homeostasis biological process that allows constants of the internal environment of the organism necessary for its proper functioning to be maintained (in limited values).

The whole regulation of homeostasis is through the autonomic nervous system (autonomic nervous system) and endocrine (hormonal) glands.


7. The right answer is chloroplast.

Chloroplasts are located in the cytoplasm of eukaryotic photosynthetic cells. In algae of the genus Chlamydomonas, there is a chloroplast per cell, usually bell-shaped and occupying a large part of the cytoplasm.

In the higher plants, most aerial parts contain them, and the leaves contain the most. Their favorite place is especially the mesophyll of the leaf where each cell can contain several tens of chloroplasts. Various aerial tissues do not contain much: epidermis-coating cells, aquiferous stomatal cells (groups of cells that evacuate water from certain leaves). In general, non-exposed tissue cells such as roots do not have them.


8. The right answer is It allows passage of particles into and out of the cell.

Membrane proteins are one of the three major classes of proteins besides fibrous proteins and globular proteins.

The functions of membrane proteins can be

*Signaling: Receptors coupled to G proteins

*Energy conversion: Photosynthetic reaction center ATP synthase

*Transport: Such as ABC Transporters, Potassium Channel, Aquaporins


10. The right answer is Only active transport requires ATP.

It is a transport of molecules against a concentration gradient that uses metabolic energy.

Permeases have a high specificity with respect to molecules.

There may also be saturation of the carrier.

The "ABC transporter" transport system is present in bacteria (ATP binding cassette transporters): it is a transporter with two hydrophobic trans-membrane domains associated on the cytoplasmic side with two nucleotide binding domains.

5 0
3 years ago
Read 2 more answers
Mitochondria are responsible for providing for the cell. Aerobic respiration happens in the mitochondria.
nirvana33 [79]
Yes it does the mitochondria is the power house of the cell therefore provides with the important function of providing energy
8 0
4 years ago
Read 2 more answers
18. Some unicellular organisms are motile (have the ability to move) and some are nonmotile. Which cellular structures are assoc
LiRa [457]

Answer:

D, Flagella

Explanation:

Ribosomes produce proteins for the cells to function, chloroplasts provide a plant cell with photosynthesis, vacuoles provide a plant cell with holding its structure up, and mitchondria provides ATP (energy) for the cell to function.

5 0
3 years ago
Read 2 more answers
Which best describes the results of this experiment
mart [117]

Answer: which experiment??

Explanation:

4 0
4 years ago
Other questions:
  • The two primary jobs of parenchyma cells are _____.
    10·1 answer
  • Scientists first found dinosaur fossils about 1820. The fossils suggested that dinosaurs were large, slow, reptiles. This view w
    13·2 answers
  • Infer why chloroplasts are found mostly in the leaves of plants.
    10·1 answer
  • Select the correct statement about lymphocytes. A) B cells produce plasma cells, which secrete antibodies into the blood. B) The
    11·1 answer
  • Based on the karyotype above, which of the following best describes the production of gametes in human females? At the end of th
    14·1 answer
  • this is an argument that makes an opposing point to another argument. it exspreses the view of a person who degrees with your po
    9·1 answer
  • Explain the endosymbiotic theory of the origin of eukaryotic cells in your own words.
    12·1 answer
  • PLS HELP ASAP
    10·1 answer
  • Can someone help me with the last two questions
    9·1 answer
  • Only right aortic arch present is (a) Reptiles (b) birds (c) mammals (d) all of these<br><br><br>​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!